The subentity of the Alias module is:

    Node___Alias___Port

    The ALIAS entity is the top-level entity in the hierarchy
    belonging to the Alias module. The entity is the root from which
    Alias Port subentity may be defined.

    The ALIAS PORT entity provides the means to define an alternate
    network address for this node, which is shared by other nodes
    in the same VMScluster. When the alias port entity is enabled,
    this node becomes an active member of the VMScluster alias it
    specifies.